Some people say they are not getting order confirmations. I am pretty sure that this is due to spam filtering, specifically this seems a major problem for those on Yahoo.
To avoid this issue please white list service @ coinsforthecause.com
In many programs (I don’t know about yahoo) you can do something like this as well, *@coinsforthecause.com to white list the entire domain. Some you can just put in @coinsforthecause.com and get the same results.
I really think email filtering is the cause of some Customer Service issues. Yahoo again is really bad about this, we run into it with forum registrations all the time. To be clear Yahoo seems to totally block some stuff like this, not just put it in your trash folder.
So if you are a TSP Mint customer please consider making this update so we can do a better job of serving you.